Balls move smoothly up to 20 seconds. Not only demonstrates a pendulum, but also shows the laws about conservation of momentum and energy. (The swing time is related to the swing height of the sphere)
Great for home ornament, study or office desk table decor accessories, etc. Also good for birthday gift and kids toy.
Place of Origin:China
Use:Office desktop decor, Business gift
Logo:Custom logo
Color:As pictures
Newton Cradle Pendulum Balls Newton Cradle Balance Ball Desk Craft Toy
$1.85
Great for home ornament, study or office desk table decor accessories, etc. Also good for birthday gift and kids toy.
